On Monday, the Boston marathon explosions took the lives of three victims, including an 8-year-old boy, and injured at least 140 more civilians standing at the Boston marathon finish line near Copley Square.

Carlos Arredondo and his wife Melida were seated at the VIP bleachers near the finish line, waiting for the last of the National Guard runners representing Run for the Fallen Maine to cross the 26 mile mark.

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Right before their eyes, two successive explosions struck the finish line, wreaking havoc at one of Boston's oldest and most prestigious sporting events.

According to Good Morning America, Red Cross trained, cowboy hat wearing Carlos Arredondo jumped over the fence, rushing to aid the more than 140 runners and bystanders struck by the blast.

"I am still very shaken," said Carlos Arredondo after the incident. "I am covered with blood and still at the scene where the tragedy happened. I jumped the fence after the first explosions and all I saw was a puddle of blood and people with lost limbs. I saw adults, much younger than myself -- ladies, men, pretty much everyone was knocked out."

"It was like an IED [improvised explosive device]," said Arredondo. "It broke everybody's legs. Two ladies at my left side were knocked unconscious. They lost their legs. I was putting pieces of clothing on their legs to stop the bleeding and called for assistance. Someone came and we helped get them in wheelchairs."

"My first reaction was to run toward the people," he said. "There was so much commotion and a lot of people running away. I was one of the first to help people and God protected me. It was horrific."

"Carlos was a real hero," said John Mixon, 60, of Ogunquit, Maine. "He jumped right over the fence even before there were police and tried to help people."

For Carlos Arredondo and his wife Melida, the senseless violence of the Boston attack was a striking reminder of the two sons they have lost. Marine Lance Cpl. Alexander Arredondo was killed in Iraq in 2004 by sniper fire. Alexander was 20 years old. In 2011, sibling Brian Arredondo killed himself due to the overwhelming grief caused by the loss of Alexander.

After the loss of his boys, Carlos Arredondo has dedicated his life to peace activism.

To learn more about the Boston Marathon hero Carlos Arredondo, watch the emotional interview following Carlos Arrendondo's rescue efforts in the video below: